1 /*
2    Unix SMB/CIFS implementation.
3 
4    test server handling of unexpected client disconnects
5 
6    Copyright (C) Andrew Tridgell 2004
7 
8    This program is free software; you can redistribute it and/or modify
9    it under the terms of the GNU General Public License as published by
10    the Free Software Foundation; either version 2 of the License, or
11    (at your option) any later version.
12 
13    This program is distributed in the hope that it will be useful,
14    but WITHOUT ANY WARRANTY; without even the implied warranty of
15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16    GNU General Public License for more details.
17 
18    You should have received a copy of the GNU General Public License
19    along with this program; if not, write to the Free Software
20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22 
23 #include "includes.h"
24 #include "torture/torture.h"
25 #include "system/filesys.h"
26 #include "libcli/raw/libcliraw.h"
27 #include "libcli/libcli.h"
28 #include "torture/util.h"
29 
30 #define BASEDIR "\\test_disconnect"
31 
32 #define CHECK_STATUS(status, correct) do { \
33 	if (!NT_STATUS_EQUAL(status, correct)) { \
34 		printf("(%s) Incorrect status %s - should be %s\n", \
35 		       __location__, nt_errstr(status), nt_errstr(correct)); \
36 		talloc_free(cli); \
37 		return False; \
38 	}} while (0)
39 
40 /*
41   test disconnect after async open
42 */
test_disconnect_open(struct smbcli_state * cli,TALLOC_CTX * mem_ctx)43 static BOOL test_disconnect_open(struct smbcli_state *cli, TALLOC_CTX *mem_ctx)
44 {
45 	union smb_open io;
46 	NTSTATUS status;
47 	struct smbcli_request *req1, *req2;
48 
49 	printf("trying open/disconnect\n");
50 
51 	io.generic.level = RAW_OPEN_NTCREATEX;
52 	io.ntcreatex.in.root_fid = 0;
53 	io.ntcreatex.in.flags = 0;
54 	io.ntcreatex.in.access_mask = SEC_FILE_READ_DATA;
55 	io.ntcreatex.in.create_options = 0;
56 	io.ntcreatex.in.file_attr = FILE_ATTRIBUTE_NORMAL;
57 	io.ntcreatex.in.share_access = NTCREATEX_SHARE_ACCESS_READ;
58 	io.ntcreatex.in.alloc_size = 0;
59 	io.ntcreatex.in.open_disposition = NTCREATEX_DISP_OPEN_IF;
60 	io.ntcreatex.in.impersonation = NTCREATEX_IMPERSONATION_ANONYMOUS;
61 	io.ntcreatex.in.security_flags = 0;
62 	io.ntcreatex.in.fname = BASEDIR "\\open.dat";
63 	status = smb_raw_open(cli->tree, mem_ctx, &io);
64 	CHECK_STATUS(status, NT_STATUS_OK);
65 
66 	io.ntcreatex.in.share_access = 0;
67 	req1 = smb_raw_open_send(cli->tree, &io);
68 	req2 = smb_raw_open_send(cli->tree, &io);
69 
70 	status = smbcli_chkpath(cli->tree, "\\");
71 	CHECK_STATUS(status, NT_STATUS_OK);
72 
73 	talloc_free(cli);
74 
75 	return True;
76 }
77 
78 
79 /*
80   test disconnect with timed lock
81 */
test_disconnect_lock(struct smbcli_state * cli,TALLOC_CTX * mem_ctx)82 static BOOL test_disconnect_lock(struct smbcli_state *cli, TALLOC_CTX *mem_ctx)
83 {
84 	union smb_lock io;
85 	NTSTATUS status;
86 	int fnum;
87 	struct smbcli_request *req;
88 	struct smb_lock_entry lock[1];
89 
90 	printf("trying disconnect with async lock\n");
91 
92 	fnum = smbcli_open(cli->tree, BASEDIR "\\write.dat",
93 			   O_RDWR | O_CREAT, DENY_NONE);
94 	if (fnum == -1) {
95 		printf("open failed in mux_write - %s\n", smbcli_errstr(cli->tree));
96 		return False;
97 	}
98 
99 	io.lockx.level = RAW_LOCK_LOCKX;
100 	io.lockx.in.file.fnum = fnum;
101 	io.lockx.in.mode = 0;
102 	io.lockx.in.timeout = 0;
103 	io.lockx.in.lock_cnt = 1;
104 	io.lockx.in.ulock_cnt = 0;
105 	lock[0].pid = 1;
106 	lock[0].offset = 0;
107 	lock[0].count = 4;
108 	io.lockx.in.locks = &lock[0];
109 
110 	status = smb_raw_lock(cli->tree, &io);
111 	CHECK_STATUS(status, NT_STATUS_OK);
112 
113 	lock[0].pid = 2;
114 	io.lockx.in.timeout = 3000;
115 	req = smb_raw_lock_send(cli->tree, &io);
116 
117 	status = smbcli_chkpath(cli->tree, "\\");
118 	CHECK_STATUS(status, NT_STATUS_OK);
119 
120 	talloc_free(cli);
121 
122 	return True;
123 }
124 
125 
126 
127 /*
128    basic testing of disconnects
129 */
torture_disconnect(struct torture_context * torture)130 BOOL torture_disconnect(struct torture_context *torture)
131 {
132 	BOOL ret = True;
133 	TALLOC_CTX *mem_ctx;
134 	int i;
135 	extern int torture_numops;
136 	struct smbcli_state *cli;
137 
138 	mem_ctx = talloc_init("torture_raw_mux");
139 
140 	if (!torture_open_connection(&cli, 0)) {
141 		return False;
142 	}
143 
144 	if (!torture_setup_dir(cli, BASEDIR)) {
145 		return False;
146 	}
147 
148 	for (i=0;i<torture_numops;i++) {
149 		ret &= test_disconnect_lock(cli, mem_ctx);
150 		if (!torture_open_connection(&cli, 0)) {
151 			return False;
152 		}
153 
154 		ret &= test_disconnect_open(cli, mem_ctx);
155 		if (!torture_open_connection(&cli, 0)) {
156 			return False;
157 		}
158 
159 		if (torture_setting_bool(torture, "samba3", False)) {
160 			/*
161 			 * In Samba3 it might happen that the old smbd from
162 			 * test_disconnect_lock is not scheduled before the
163 			 * new process comes in. Try to get rid of the random
164 			 * failures in the build farm.
165 			 */
166 			msleep(200);
167 		}
168 	}
169 
170 	smb_raw_exit(cli->session);
171 	smbcli_deltree(cli->tree, BASEDIR);
172 	talloc_free(mem_ctx);
173 	return ret;
174 }
175